#!/bin/bash
# ==============================================================================
# init-workspace.sh - Inicializa el workspace para desarrollo
# ==============================================================================
# Uso: ./init-workspace.sh
#
# Este script:
#   1. Verifica prerequisitos (Docker, etc.)
#   2. Crea las redes Docker necesarias
#   3. Levanta Traefik
#   4. Verifica que todo este funcionando
# ==============================================================================

set -e

# Colores
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m'

# Rutas
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
CONTROL_PLANE="${SCRIPT_DIR}/../../.."
DOCKER_DIR="${CONTROL_PLANE}/devtools/docker"

echo -e "${BLUE}============================================${NC}"
echo -e "${BLUE}   INICIALIZACION DEL WORKSPACE${NC}"
echo -e "${BLUE}============================================${NC}"
echo ""

# ------------------------------------------------------------------------------
# 1. Verificar prerequisitos
# ------------------------------------------------------------------------------
echo -e "${YELLOW}[1/4] Verificando prerequisitos...${NC}"

# Docker
if ! command -v docker &> /dev/null; then
    echo -e "${RED}ERROR: Docker no esta instalado${NC}"
    echo "Por favor instala Docker Desktop: https://www.docker.com/products/docker-desktop"
    exit 1
fi
echo -e "  ${GREEN}[OK]${NC} Docker instalado"

# Docker Compose
if ! docker compose version &> /dev/null; then
    if ! command -v docker-compose &> /dev/null; then
        echo -e "${RED}ERROR: Docker Compose no esta instalado${NC}"
        exit 1
    fi
fi
echo -e "  ${GREEN}[OK]${NC} Docker Compose instalado"

# Docker daemon running
if ! docker info &> /dev/null; then
    echo -e "${RED}ERROR: Docker daemon no esta corriendo${NC}"
    echo "Por favor inicia Docker Desktop"
    exit 1
fi
echo -e "  ${GREEN}[OK]${NC} Docker daemon corriendo"

# Python3 (para scripts de validacion)
if ! command -v python3 &> /dev/null; then
    echo -e "${YELLOW}WARN: Python3 no instalado - algunas validaciones no funcionaran${NC}"
else
    echo -e "  ${GREEN}[OK]${NC} Python3 instalado"
fi

# ------------------------------------------------------------------------------
# 2. Crear redes Docker
# ------------------------------------------------------------------------------
echo ""
echo -e "${YELLOW}[2/4] Creando redes Docker...${NC}"

# Red de infraestructura
echo "  Creando red: infra_shared"
docker network create infra_shared 2>/dev/null && echo -e "    ${GREEN}[CREATED]${NC}" || echo -e "    ${YELLOW}[EXISTS]${NC}"

# Redes por proyecto
PROJECTS=("gamilit" "erp_core" "erp_construccion" "erp_mecanicas" "trading" "betting")
ENVIRONMENTS=("local" "dev")

for project in "${PROJECTS[@]}"; do
    for env in "${ENVIRONMENTS[@]}"; do
        network_name="${project}_${env}"
        echo "  Creando red: $network_name"
        docker network create "$network_name" 2>/dev/null && echo -e "    ${GREEN}[CREATED]${NC}" || echo -e "    ${YELLOW}[EXISTS]${NC}"
    done
done

# ------------------------------------------------------------------------------
# 3. Configurar Traefik
# ------------------------------------------------------------------------------
echo ""
echo -e "${YELLOW}[3/4] Configurando Traefik...${NC}"

TRAEFIK_DIR="${DOCKER_DIR}/traefik"

# Crear directorio si no existe
mkdir -p "${TRAEFIK_DIR}/dynamic"

# Crear traefik.yml si no existe
if [ ! -f "${TRAEFIK_DIR}/traefik.yml" ]; then
    echo "  Creando traefik.yml..."
    cat > "${TRAEFIK_DIR}/traefik.yml" << 'EOF'
# Traefik Configuration
api:
  dashboard: true
  insecure: true

entryPoints:
  web:
    address: ":80"
  websecure:
    address: ":443"

providers:
  docker:
    endpoint: "unix:///var/run/docker.sock"
    exposedByDefault: false
    network: infra_shared
  file:
    directory: /etc/traefik/dynamic
    watch: true

log:
  level: INFO
EOF
    echo -e "  ${GREEN}[OK]${NC} traefik.yml creado"
else
    echo -e "  ${GREEN}[OK]${NC} traefik.yml existe"
fi

# Crear docker-compose para Traefik
if [ ! -f "${TRAEFIK_DIR}/docker-compose.yml" ]; then
    echo "  Creando docker-compose.yml para Traefik..."
    cat > "${TRAEFIK_DIR}/docker-compose.yml" << 'EOF'
version: "3.8"

services:
  traefik:
    image: traefik:v2.10
    container_name: traefik
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./traefik.yml:/etc/traefik/traefik.yml:ro
      - ./dynamic:/etc/traefik/dynamic:ro
    networks:
      - infra_shared

networks:
  infra_shared:
    external: true
EOF
    echo -e "  ${GREEN}[OK]${NC} docker-compose.yml creado"
else
    echo -e "  ${GREEN}[OK]${NC} docker-compose.yml existe"
fi

# Levantar Traefik
echo "  Levantando Traefik..."
cd "${TRAEFIK_DIR}"
docker compose up -d 2>/dev/null || docker-compose up -d

# ------------------------------------------------------------------------------
# 4. Verificar
# ------------------------------------------------------------------------------
echo ""
echo -e "${YELLOW}[4/4] Verificando...${NC}"

sleep 2

# Verificar Traefik
if curl -s http://localhost:8080/api/overview > /dev/null 2>&1; then
    echo -e "  ${GREEN}[OK]${NC} Traefik dashboard accesible en http://localhost:8080"
else
    echo -e "  ${YELLOW}[WARN]${NC} Traefik dashboard no responde aun (puede tomar unos segundos)"
fi

# Listar redes
echo ""
echo "Redes Docker creadas:"
docker network ls --filter "driver=bridge" --format "  - {{.Name}}" | grep -E "(infra|gamilit|erp|trading|betting)" || true

# ------------------------------------------------------------------------------
# Resultado
# ------------------------------------------------------------------------------
echo ""
echo -e "${BLUE}============================================${NC}"
echo -e "${GREEN}   WORKSPACE INICIALIZADO${NC}"
echo -e "${BLUE}============================================${NC}"
echo ""
echo "Proximos pasos:"
echo "  1. Clonar un proyecto: cd repos && git clone <repo-url>"
echo "  2. Ir al proyecto: cd repos/<proyecto>"
echo "  3. Levantar servicios: cd docker && docker-compose up -d"
echo ""
echo "URLs utiles:"
echo "  - Traefik Dashboard: http://localhost:8080"
echo ""